Genetic Variation of Methylenetetrahydrofolate Reductase (MTHFR) and Thymidylate Synthase (TS) Genes Is Associated with Idiopathic Recurrent Implantation Failure

• Youngsok Choi ,

  Contributed equally to this work with: Youngsok Choi, Jung Oh Kim

  Affiliations Department of Biomedical Science, College of Life Sciences, CHA University, Seongnam, South Korea, Fertility Center of CHA Gangnam Medical Center, CHA University, Seoul, South Korea

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• Jung Oh Kim ,

  Contributed equally to this work with: Youngsok Choi, Jung Oh Kim

  Affiliations Department of Biomedical Science, College of Life Sciences, CHA University, Seongnam, South Korea, Institute for Clinical Research, CHA Bundang Medical Center, School of Medicine, CHA University, Seongnam, South Korea

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• Sung Han Shim,

  Affiliations Department of Biomedical Science, College of Life Sciences, CHA University, Seongnam, South Korea, Fertility Center of CHA Gangnam Medical Center, CHA University, Seoul, South Korea

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• Yubin Lee,

  Affiliation Fertility Center of CHA Gangnam Medical Center, CHA University, Seoul, South Korea

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• Ji Hyang Kim,

  Affiliation Department of Obstetrics and Gynecology, CHA Bundang Medical Center, School of Medicine, CHA University, Seongnam, South Korea

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• Young Joo Jeon,

  Affiliations Department of Biomedical Science, College of Life Sciences, CHA University, Seongnam, South Korea, Institute for Clinical Research, CHA Bundang Medical Center, School of Medicine, CHA University, Seongnam, South Korea

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• Jung Jae Ko,

  Affiliation Department of Biomedical Science, College of Life Sciences, CHA University, Seongnam, South Korea

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• Woo Sik Lee ,

  * E-mail: nkkim@cha.ac.kr (NKK); wooslee@cha.ac.kr (WSL)

  Affiliation Fertility Center of CHA Gangnam Medical Center, CHA University, Seoul, South Korea

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• Nam Keun Kim

  * E-mail: nkkim@cha.ac.kr (NKK); wooslee@cha.ac.kr (WSL)

  Affiliations Department of Biomedical Science, College of Life Sciences, CHA University, Seongnam, South Korea, Institute for Clinical Research, CHA Bundang Medical Center, School of Medicine, CHA University, Seongnam, South Korea

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